Search Results for author: Jiajun Zhu

Found 8 papers, 1 papers with code

Fine-tuning Graph Neural Networks by Preserving Graph Generative Patterns

1 code implementation21 Dec 2023 Yifei Sun, Qi Zhu, Yang Yang, Chunping Wang, Tianyu Fan, Jiajun Zhu, Lei Chen

In this paper, we identify the fundamental cause of structural divergence as the discrepancy of generative patterns between the pre-training and downstream graphs.

Graph Mining Transfer Learning

A Low-Complexity Range Estimation with Adjusted Affine Frequency Division Multiplexing Waveform

no code implementations18 Dec 2023 Jiajun Zhu, Yanqun Tang, Xizhang Wei, Haoran Yin, Jinming Du, Zhengpeng Wang, Yuqinng Liu

Affine frequency division multiplexing (AFDM) is a recently proposed communication waveform for time-varying channel scenarios.

Use neural networks to recognize students' handwritten letters and incorrect symbols

no code implementations12 Sep 2023 Jiajun Zhu, Zichuan Yang, Binjie Hong, Jiacheng Song, Jiwei Wang, Tianhao Chen, Shuilan Yang, Zixun Lan, Fei Ma

Correcting students' multiple-choice answers is a repetitive and mechanical task that can be considered an image multi-classification task.

Multiple-choice

A Phase-Coded Time-Domain Interleaved OTFS Waveform with Improved Ambiguity Function

no code implementations26 Jul 2023 Jiajun Zhu, Yanqun Tang, Chao Yang, Chi Zhang, Haoran Yin, Jiaojiao Xiong, Yuhua Chen

To enhance the sensing performance of the orthogonal time frequency space (OTFS) waveform, we propose a novel time-domain interleaved cyclic-shifted P4-coded OTFS (TICP4-OTFS) with improved ambiguity function.

An Overview of Resource Allocation in Integrated Sensing and Communication

no code implementations15 May 2023 Jinming Du, Yanqun Tang, Xizhang Wei, Jiaojiao Xiong, Jiajun Zhu, Haoran Yin, Chi Zhang, Haibo Chen

Integrated sensing and communication (ISAC) is considered as a promising solution for improving spectrum efficiency and relieving wireless spectrum congestion.

Overview and Performance Analysis of Various Waveforms in High Mobility Scenarios

no code implementations28 Feb 2023 Yu Zhou, Haoran Yin, Jiaojiao Xiong, Shiyu Song, Jiajun Zhu, Jinming Du, Haibo Chen, Yanqun Tang

In the high-mobility scenarios of next-generation wireless communication systems (beyond 5G/6G), the performance of orthogonal frequency division multiplexing (OFDM) deteriorates drastically due to the loss of orthogonality between the subcarriers caused by large Doppler frequency shifts.

Vocal Bursts Intensity Prediction

Tracking Based Semi-Automatic Annotation for Scene Text Videos

no code implementations29 Mar 2021 Jiajun Zhu, Xiufeng Jiang, Zhiwei Jia, Shugong Xu, Shan Cao

Moreover, a paired low-quality scene text video dataset named Text-RBL is proposed, consisting of raw videos, blurry videos, and low-resolution videos, labeled by the proposed convenient semi-automatic labeling strategy.

Scene Text Detection text annotation +1

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